... .060.10moisture1.42.02.52.Brief introduction,Sodium nitritr, with chemical formula NaNO2, is used as a clor fixative preservative in ... and usages,It is mainly used for producing nitrogenous base chemical compound, it is the raw material of azo dyees, etc ... , the antifreeze, etc. It is also used in pharmacy and chemical trade.4.Storage,Store in the shady, cool and dry storehouse ...